303-frameworks-spring-boot-validation

Q: What is a Claude Code skill and how does the 303-frameworks-spring-boot-validation skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. 303-frameworks-spring-boot-validation is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: backend · Last updated: 2026-06-11

lang:java type:review

Use when you need to design, review, or improve validation in Spring Boot applications — including Bean Validation on request DTOs, @Valid/@Validated at API boundaries, c — from jabrena/cursor-rules-java

About this skill (catalog notes)

303-frameworks-spring-boot-validation is published as a SKILL.md file in this catalog. The SKILL.md is on the shorter side at about 265 words.

Source: jabrena.github.io/cursor-rules-java
License: Apache-2.0
Original author: jabrena
Indexed lastmod: 2026-06-11
Catalog position: Engineering · backend
Indexed related skills: 10

How 303-frameworks-spring-boot-validation fits the catalog

303-frameworks-spring-boot-validation sits in the Engineering category under the backend sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Apply Spring Boot validation best practices at API boundaries.

What this skill does

303-frameworks-spring-boot-validation is a community-contributed Claude Code skill in the backend sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/frameworks-spring-boot-validation/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The 303-frameworks-spring-boot-validation Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 97,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/frameworks-spring-boot-validation
curl -L https://claudskills.com/skills/frameworks-spring-boot-validation/SKILL.md \
  -o ~/.claude/skills/frameworks-spring-boot-validation/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/frameworks-spring-boot-validation/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/frameworks-spring-boot-validation/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\frameworks-spring-boot-validation\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the 303-frameworks-spring-boot-validation Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/frameworks-spring-boot-validation/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the 303-frameworks-spring-boot-validation skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the 303-frameworks-spring-boot-validation skill?

Use 303-frameworks-spring-boot-validation when your Claude Code task falls under the Engineering category — specifically in the backend area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use 303-frameworks-spring-boot-validation" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the 303-frameworks-spring-boot-validation skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. 303-frameworks-spring-boot-validation is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/jabrena/cursor-rules-java/blob/HEAD/skills/303-frameworks-spring-boot-validation/SKILL.md
License: Apache-2.0
Author: jabrena
Website: https://jabrena.github.io/cursor-rules-java/

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

jabrena. (2026). 303-frameworks-spring-boot-validation [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/frameworks-spring-boot-validation/

BibTeX

@misc{frameworks-spring-boot-validation-2026,
  author    = {jabrena},
  title     = {303-frameworks-spring-boot-validation [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/frameworks-spring-boot-validation/}
}

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